Hubert Charles Day (8 May 1908 – 27 June 1977) was a rugby hooker who played rugby union for Newport and rugby league for Salford. He was awarded five caps for Wales under union rules and was part of the Welsh side that won the 1931 Five Nations Championship. At Salford Day forged a reputation as the greatest hooker to play for the club, his record 488 appearances for the club went unbroken for over 35 years.